Metal pole



Feb. 15-, 1927. 1,617,331

W. D. HAMER METAL POLE Filed March 19, 1926 10 YX/VENTOR.

A TTORNEY. S

Patented Feb. 15,1927. f i "i I i 9 9 1 ETED PATETFEC E.

WILLIAM n. HAMER, or INDIANAPOLIS, INDIANA.

1VIETAL POLE. I

I Ap licationfiled March 19,1926. seriainaeassr- The object of my invention is to produce, and the adjacent ribbons firmlv connected, fromcommercial angle irons, an eflicient said ribbons serve both to connect and firmpost or pole-such as would be'usei'ul in lycross-brace the angle irons and form a 1 supporting electric wiresand such as would light but very strong pole which is equally I ofler a maximum of strength with a ministiffened in all directions. i mum of material. I Each angle iron, at its lower end, may be The accompanyingdrawings illustrate my slit at the junction of the arms, and the ends invention. Fig. 1 is an elevation of a pole 16 turned outwardly and perforated at 17, O I

embodyin my invention. Fig. 2 a frag- .to forma footing. mentary cetail in elevation. Fig. 3 a sec- If the base of the poles .is buried these tion. on a smaller scale,-on line 33 of Fig. out-turned portions 16 help to anchor the 2, Fig. 4 a fragmentary pers ective of the pole in place and this anchorage may be lowerend of one of the angle lron elements, readily increased by securing cross bars or 55 Fig. 5 a section on the line 55 of Fig. 1 plates thereto by bolts passed through the on a larger scale andFig. 6 a fragmentary perforations 17 elevatlon of another form. In Fig. 6 the ribbons are merely displaced In the drawings 10, 10 indicate the diand overlapped. verging arms of an angle iron of suitable I claim asmy invention: .60 lengthand transverse dimensions and pref- 1. A pole formed of a plurality of angle erably as h0w11-an integral element, 211- irons the arms 0f each of 'WlliCll are lOIlgithough they may be elements of a built up tudinally slit at longitudinally spaced apart t t I intervals and the slitted portions laterally At vario points, in their lengths, the displaced at their middles to form a series arms 10 are longitudinally slit,'conveniently of longitudinally spaced apart laterally exparallel with their sides, as at 11, to form tending projections on each arm and such ribbons12 each attached at each end to the displa d'p rtions directly connected to the main body of the arm. Each of these ribp a Portions o fill-ED091113 angle'armsl bons at its middle 13 is then laterally dis- 2. A pole'formed of a'pluralit-y of angle placed, away from the main body and conirons the arms of each of which are longi-. veniently substantially in the plane of th tudinally slit at longitudinally spaced apart armfand at the same time is twisted through intervals and the slitted portions laterally an angle of 90 degrees so that the middle displaced and twisted at their middles to" of the ribbon then lies spaced from the main form a series of longitudinally spaced apart body and at right angles to the arm from laterally extending projections on'each arm 35 which it springs, as shown in the drawings. and such displaced portions directly con- The middle of each ribbonis perforated to nected to the displaced portions ofadjacent receive a clamping bolt or rivet 14:. angle arms. g p

- The amount of displacement of the mid- In witness whereof, I. have hereunto set dles of the ribbons may be varied so as to my hand at Indianapolis, Indiana, this 17th provide a desired taper in the finishedprodday of March, 'A. D. one thousand nine not and when four angle irons are assemhundred and twenty-six. i bled,-in the manner shown in the drawings, WILLIAM'D. HAMER. 

